Arsenic in Espanola, NM Drinking Water
Arsenic data for Espanola, New Mexico · 12,903 residents · 2 ZIP codes
Over the past reporting period, water systems in Espanola, New Mexico have recorded Arsenic at detectable concentrations in EPA compliance samples.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Arsenic in Espanola Tap Water
Arsenic has been detected in Espanola, New Mexico drinking water at a maximum level of 10 ppb — below the EPA MCL of 10 ppb.
This analysis covers 12,903 residents across 2 ZIP codes in Espanola.
Espanola's overall water quality grade is C (59/100).
Is Arsenic in Espanola Water Safe?
Arsenic was detected in Espanola water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis filter can reduce arsenic levels further.
Arsenic Levels by ZIP Code
Average arsenic level across Espanola: 10 ppb
Health Effects of Arsenic
- Increased risk of skin, bladder, lung, and kidney cancer
- Cardiovascular disease and type 2 diabetes
- Skin changes (darkening, thickening, lesions)
- Developmental effects in children exposed in utero
Health risk severity: High. Governed by the Arsenic Rule (2006).
How Arsenic Gets Into Drinking Water
- Natural deposits in rock and soil (especially in western U.S.)
- Runoff from orchards and glass/electronics production
- Historical use of arsenic-based pesticides
- Well water in areas with arsenic-rich geology
What to Do About Arsenic in Espanola Water
- Install a reverse osmosis (RO) system certified under NSF 58
- Adsorptive media filters (iron-based) can also reduce arsenic
- Have well water tested if on a private supply
- Boiling water does NOT remove arsenic — it concentrates it
Look for filters certified under NSF 53 / NSF 58 for arsenic removal.